Henry timken and reginald heinzelman



ROLLER BEARING.

Patented June 28, 1898.

R.l TIMKRN an R. RRINZRLMAN.

(No Model.)

' UNITED STATES o PATENT OFFICE.

ASSIGNORS OF ONEjHALF- TIMKEIT, OF SAME PLACE.

TO`WILTJAMRQTIMKN AND HENRY H.

ROLLER-BEARING.

SPECIFICATION forming part of Letters einem No. cocasse, dated June 2s, 189s. V Application filed. February-19, 1898. Serial No. 670,987. (No model.)

To tu whom Il t may concern:

Be it known that we, HENRY TIMK'EN and REGIALD I-IEINZELMAN, citizens of the United States of America, and residents of the city of St. Louis, State of Missouri, have invented certain new and useful Improvements in Roller-Bearip gs for Vehicles, of which the following is a speciiication.

Our invention relates to roller-bearings,

and has for its objects to minimize the friction, to facilitate the 'assembling of the partsv and removal and manipulation of the same, and to improvethe construction of the bearlng.

To these ends our invent-ion consists in the parts and arrangements-of parts hereinafter described and claimed.'

VIn the accompanying drawings, which form part of this specification, Figure 1 is alongitudinal sectional View of our bearing. Fig. 2 is a cross-section of the sleeve lon the line 2 2 of Fig. 4. Fig. 3 is a cross-section of thebearing mounted o n the axle on the line 3 3 of Fig. 1. 'Fig.. 4 is a. detail-ofl the bearingsleeve, showing a portion thereof` in section. Fig. 5 is a detail of' a horizontal roller, and Fig, 6 is a detail of the intermedi-ate idlerollers.'

N ear'the end of the-axle or spindle 1 andv fitting thereon is a conical sleeve 2,-which is provitded with an annular rib or ribs 3 on its outer surface and which has its ends enlarged.

Around this conical sleeve conical rollers 4 areprov'ided, so as to bear thereon, and each roller is provided with a groove or grooves 5 to correspond. with the rib or ribs on'the sleeve,

whereby the rib's lie in such grooves. The inner side or shoulder of the enlarged e'nds 'ofthe eonical'sleevefthat is, the side next to the bearing-su-rface-is hollowed out, so as to form an annular groove or space therein.

The ends of the rollers 4 are abruptly reduced to a small projectionV 6,- whic'h when the rollers rest on the bearing-surface of the sleeve 2 does not )touch any portion of the sleeve, but liesin the groove or Space in the end thereof and under the 'overhanging annular portion of said end. When the e11- larged ends are made integral with the sleeve,

a notch 7 large enough tolet the projection of the sleeve.

- sleeves.

at the ends of the roller pass is formed in the blingthe parts.

In the groove or space at each end of the sleeve is a raised 'shonlder'8, emistituting an .annular;bearing-surface, said shoulders extending farther beyond 'the main bearingsurface of the conical sleeve 'than the ribs thereon.. which cooperate with the grooves in the rollers. Bet-Ween each two of the bearing-rollers 4 is a conical roller 9, Whose ends extend beyond the bearing-'rollers 4 and rest on the raised Yshoulders in the enlarged ends The smaller rollers are thus entirelyclear of the main bearing-surface of the sleeve and of the ribs thereon, and they are made sufiiciently small to clear the outer box -or casing 10 of .the bearing, which box is embedded in the hub of= the wheel. The notch in the o-verhanging portion ofA this enlarged end is-niade large enough to allow of the insertion of these small rollers.

The operation of the device is .as follows: The hub of the wheel is furnishedwith a cylindrical' sleeve 11, terminating at each end in a conical box l0, whose`inner surface constitutes .the outer bearing for the rollers 4 around. the corresponding conical sleeves 2, it being understood that there is one conical sleeve at eachend of the h'nb. The wheel is heid onA the axle by an ordinary carriage-nut 12, working on a thread on the end of the axle and arranged to 'adj ust the conical 'bearing- Suitable dust-caps and washers are provided, as described. The several bearingrollers 4ar assembled upon the conical sleeve 2,' with v.the pro 'ections at their ends inside of the grooves att e ends of thesleeveand'their grooves straddlingj the ribs of the sleeves and with the smaller rollers arranged alternately with them. Endwise movement of either of the conical sleeves eiects the adjustment of the bearings, lVhen the Wheel turns, the bearing-rollers 4 roll with it upon both bearing-surfaces. with tire intermediate idle-rollers 9, said idlerollers are turned in a direction the reverse lof the direction of rotation As lthe rollers 4 are in contact 95 of the bearingrollers-that is, the contact-surfaces of the two rollers move in the same direction. Thus the IOO entire friction of the bearing-rollers is due to rolling contact only, and the only sliding frictionv in the bearing is that due to the ends of the smaller rollers in contact with the end shoulders, which is very slight by reason of thc small area of such contact-surfaces.

Other special advantages of the foregoing construction are thev facility with which the parts can be assembled and kept together while being manipulated. .In use the overhanging end port-ions tend to prevent the bearing-rollers from climbing up on the ribs of the sleeve. By making the diameter of the larger enlarged end of the conical sleeve nearly equal to the inner diameter of the crresponding portion of the box or casing said end serves as a dust-cap, with which a split ring or washer cooperates.

Divers modifications may be made in the construction hereinbefore described Without departing from our invention. Forinstance, instead of having separate shoulders in the ends of the bearing-sleeve the idle-rollers may hear on the ribs of `the sleeve. So, also, the smaller rollers may be formed with grooves similar to those of the larger rollers for' the purpose of'straddling the ribs and thus preventing endwise movement. Again, it is obvious that the reverselyturned ends of the sleeve may be made as a part of the boxor casing or may be made in separate pieces. Evidently, also, instead of a removable sleeveV the inner bearing-surface may be formed on the axle or journal itself. p

While our invention isdesigned primarily for vehicles, it is capable of general use-as an axle or journal bearing, andwe do not wish to restrict ourselves to its use with vehicles. So, also, it isobvious that ourinvention may be applied to cylindrical rollers and bearingsurfaces.

Vhat we claim isv1. A bearing comprising an inner hearingpiece and an outer bearing-piece and rollers y fitting between the hearing-surfaces thereof, one of said pieces having one or more annular ribs thereon and one of said pieces having reversely-turned parts at its ends constituting grooves atsaid ends, and said rollers having narrow projections at their ends adapted to enter said grooves, substantially as and for the purpose set forth.

2. A bearing comprising an inner bearingapiece and an outer bearing-piece and rollers between the same, one of said pieces having reversely-turncd end portions fixed thereon or integral therewith constituting grooves, one of said end portions being notched and said rollers having projecting end portions y in said grooves, substantially as and for the purpose set forth.

3. A bearing comprising a conical sleeve with a rib or ribs thereon and having its ends enlarged and provided with grooves in their inner sides, conical rollers bearing on said sleeve and having grooves corresponding with said ribs and having narrow projections at their ends extending into said side grooves,

`substantially asand for the purpose set forth.

-4.A bearing comprising a conical sleeve having its ends enlarged and provided with annular groovesl and a notch in the backtuned portion thereof, and conical rollers around-said sleeve having projections at their en ds within said grooves, substantially as and for the purpose set forth.

5. A bearing comprising a conical sleeve having its ends enlarged and provided with annular grooves therein, conical rollers around said sleeye having projections at their ends within said grooves, a box around said rollers, said sleeve having raised annular su rfaces, and smaller conical rollers arranged alternately with the first-mentioned rollers and upon said raised surfaces and clear of the Imain bearing-surfaces of .the box and the sleeve, substantially as and for the purpose set forth.

6. A bearing comprising a conical sleeve, a'box, and grooved conical rollers between the same, said sleeve having an annular rib Vor ribs coperating with the grooves of the rollers and having grooves formed at its ends for projections at the ends of said rollers, and having raised annular surfaces in said grooves, and smaller conical rollers bearing on said raised surfaces'and arranged alternately with said first-mentioned rollers and clear of the box and the main bearing-surface of the sleeve substantially as and for the purpose set forth. y

St. Louis, Missouri, February 10, 1808.

HENRY TIMKEN. REGNALD HEIN ZELMAN.

Witnesses:

FRANK H. HAsKINs, JAMES A. CARR. 

